668 	if (!p->ptrace &&  in reparent_leader()
704 			BUG_ON((!t->ptrace) != (rcu_access_pointer(t->parent) == father));  in forget_original_parent()
705 			if (likely(!t->ptrace))  in forget_original_parent()
739 	if (unlikely(tsk->ptrace)) {  in exit_notify()
1068 eligible_child(struct wait_opts *wo, bool ptrace, struct task_struct *p)  in eligible_child()  argument
1077 	if (ptrace || (wo->wo_flags & __WALL))  in eligible_child()
1230 static int *task_stopped_code(struct task_struct *p, bool ptrace)  in task_stopped_code()  argument
1232 	if (ptrace) {  in task_stopped_code()
1261 				int ptrace, struct task_struct *p)  in wait_task_stopped()  argument
1271 	if (!ptrace && !(wo->wo_flags & WUNTRACED))  in wait_task_stopped()
1274 	if (!task_stopped_code(p, ptrace))  in wait_task_stopped()
1280 	p_code = task_stopped_code(p, ptrace);  in wait_task_stopped()
1306 	why = ptrace ? CLD_TRAPPED : CLD_STOPPED;  in wait_task_stopped()
1384 static int wait_consider_task(struct wait_opts *wo, int ptrace,  in wait_consider_task()  argument
1398 	ret = eligible_child(wo, ptrace, p);  in wait_consider_task()
1407 		if (likely(!ptrace))  in wait_consider_task()
1412 	if (likely(!ptrace) && unlikely(p->ptrace)) {  in wait_consider_task()
1425 			ptrace = 1;  in wait_consider_task()
1437 			if (unlikely(ptrace) || likely(!p->ptrace))  in wait_consider_task()
1461 		if (likely(!ptrace) || (wo->wo_flags & (WCONTINUED | WEXITED)))  in wait_consider_task()
1475 	ret = wait_task_stopped(wo, ptrace, p);  in wait_consider_task()
1546 static bool is_effectively_child(struct wait_opts *wo, bool ptrace,  in is_effectively_child()  argument
1550 		!ptrace ? target->real_parent : target->parent;  in is_effectively_child()
1562 	bool ptrace;  in do_wait_pid()  local
1566 	ptrace = false;  in do_wait_pid()
1568 	if (target && is_effectively_child(wo, ptrace, target)) {  in do_wait_pid()
1569 		retval = wait_consider_task(wo, ptrace, target);  in do_wait_pid()
1574 	ptrace = true;  in do_wait_pid()
1576 	if (target && target->ptrace &&  in do_wait_pid()
1577 	    is_effectively_child(wo, ptrace, target)) {  in do_wait_pid()
1578 		retval = wait_consider_task(wo, ptrace, target);  in do_wait_pid()